Tides and tidal forces
The Vela Supernova Remnant - expanding clouds of gas from a supernova which occurred 10,000 years ago.
tidal force
the difference in gravitational force between two points on an object caused by the gravity of another object; the tidal force often leads to a deformation of an object
tides ...
tidal force The variation in one body's gravitational force from place to place across another body-for example, the variation of the Moon's gravity across the Earth.
Tidal Force
The differential gravitational pull exerted on any extended body in the gravitational field of another body.
Tidal Theory ...
tidal force
The force exerted on an object by the body around which it is orbiting, due to the gravitational pull on the near face of the object being much stronger than the far side.
Tidal forces
the gravitational pull on planetary objects from nearby planets and moons.
Tidal Force - The differences in gravity in a body being attracted by another body
Tidal Heating - The frictional heating of the interior of a satellite as it is flexed and released by a variable tidal force due to its parent planet ...
TIDAL FORCES
Tidal forces are the gravitational pull exerted upon planetary objects by nearby planets, moons, or stars.
Tidal force
The tidal force is a secondary effect of the force of gravity and is responsible for the tides. It arises because the gravitational force exerted on one body by a second body is not constant across its diameter....
Tidal forces affecting the Oort cloud come from stars in the Milky Way's galactic disk with some pull from the galactic core. The tide results from the sun and comets being different distances from these massive amounts of matter.
Tidal forces cause orbits to go to a state of lowest energy while conserving angular momentum. This results in the circularization of originally elliptical orbits. The ocean tide on earth from moon is
The ocean tide on earth from sun is ...
Tidal forces from Jupiter and its other large satellites superheat the interior of the moon Io and make it the most volcanic body in the Solar System.
Tidal forces always act to try to synchronize the rotation rate with the instantaneous orbital speed, but such synchronization cannot be maintained over Mercury's entire orbit. What happens?
The tidal forces are reciprocal. Not only will the Moon induce tides in the body of the Earth and the Earth's oceans, ...
The tidal force from Jupiter, on the other hand, works to circularize their orbits.
These tidal forces significantly heat the two innermost Galilean moons. The gravitational pull of the mother planet and sister moons constantly yank and bend Io, heating it up in the same way repeated twisting heats up a metal wire.
However, the tidal forces upon Phobos due to Mars are much larger. Edouard Roche (1820-1883) developed a formula called the "Roche Limit, ...
Here is a table of tidal forces of the Sun, Moon, and Planets. With the sun's tidal force equal to 1.00, the following values are given in Thompson (1981):
Moon
2.21 ...
The strength of the tidal force depends on how gravitational attraction changes with distance, rather than on the absolute force being felt.
Astrophysics Dictionary- GSFC) The smallest distance from a planet or other body at which purely gravitational forces can hold together a satellite or secondary body of the same mean density as the primary; at less than this distance the tidal forces ...
In such a system the tidal forces must be very great, and under their influence the stars will not be spherical, but will be elongated in the direction of the line joining their centres.
Earth's ocean tides are initiated by the tidal force (a gradient in intensity) of Moon's gravity and are magnified by a host of effects in Earth's oceans.
Depending upon the mass of the black hole, you could be ripped apart by tidal forces. What do I mean by this?
If you were to fall into a black hole the thing that would kill you would be the tidal force. The tidal force (so named because it accounts for the tides on the Earth) is due to a body receiving different amounts of gravitational force.
A black hole, such as one formed as a stellar corpse, would be rather inconvenient for space travel, because the matter falling into it would be crushed and incinerated by tidal forces as it entered the black hole.
Long-period comets may be perturbed from their resting place in the Oort cloud by a passing star or giant molecular cloud, or even through tidal forces generated by the bulge and disk of our Galaxy.
A rigid satellite will maintain its shape until tidal forces break it apart; in contrast, a fluid satellite gradually deforms leading to increased tidal forces, and eventually breaks apart.
When comets pass close to a massive body like the Sun or Jupiter, they may break up due, at least in part, to the tidal forces encountered.
Despite intensive searching no companion galaxies that could forcibly eject the gas though tidal forces have been found.
(a) Propagating waves of gravitational tidal force that are emitted by dynamical systems such as collapsing stars or binary star systems, and move with the speed of light. [D89] ...
(Some but not all Sun-grazing nuclei split under solar tidal forces.) Finally, argued Whipple, the asymmetric vaporization of the nuclear ices sunward produces a jet action opposite to the Sun on the solid cometary nucleus.
The most likely reason for the fact that these oceans are still liquid so far from the Sun is that Europa too is subject to great tidal forces from the great mass of Jupiter.
If you fell in feet-first, your body would be scrunched sideways and stretched along the length of your body by the tidal forces of the black hole. Your body would look like a spaghetti noodle! ...
Because of the effect on the Moon of tidal forces due to the Earth, the same side of the moon always faces the Earth. In other words, it takes the Moon the same amount of time to rotate around once as it does for the Moon to go around the Earth once.
Io is the most volcanically active body in the solar system, due to heat resulting from tidal forces (discussed further in Chapter 3) which flex its crust. Powerful Earth-based telescopes can observe volcanoes resurfacing Io continuously.
The Roche limit is the minimum distance to which a large satellite can approach its primary body without being torn apart by tidal forces.
This deformation is believed to have been caused by gravitational tidal forces acting on the cluster due to its close proximity to the galactic center. It is only 6,100 light-years from the center of our galaxy.
In his earlier work on the subject, he had ignored the issue of tidal forces.
And Phobos is doomed: because its orbit is below synchronous altitude tidal forces are lowering its orbit (current rate: about 1.8 meters per century).
The tidal forces of the Sun have over ions of time slowed down the rotation of Mercury to Match its revolution around the Sun. The result is that Mecury rotates very slowly. It takes two Mercury years for the planet to complete one rotation.
The formation of ring is due to the great tidal force by Saturn, tearing one or more satellites into smaller parts. In closer look, there are many gaps between the ringlets, the most obvious one is the Cassini division.
Gravitational tidal forces between Jupiter, other Galilean moons, and Io cause tidal friction in Io's interior, producing geysers that spew sulfur at tremendous speeds. Some of the sulfur ions leave Io's surface and become trapped around Jupiter.
More precisely, it is the strength and direction of tidal forces (measured by the Weyl tensor) that oscillates, which should cause objects in the path of the wave to change shape (but not size) in a pulsating fashion.
A simple relationship between the orbital and spin periods of a satellite or planet, caused by tidal forces that have slowed the rate of rotation of the orbiting body. Synchronous rotation is the simplest and most common form of spin-orbit coupling.
Accretion of smaller particles, and disaggregation due to tidal forces.
DIAGRAM OF SATURN'S RING SYSTEM
Saturn's moons and rings shown approximately to scale.
As they approach each other, the stars both begin to spin faster as tidal forces become stronger, finally flip-flopping over, actually trading places with each other.
The smallest distance at which two celestial bodies can remain in a stable orbit around each other without one of them being torn apart by tidal forces. The distance depends on the densities of the two bodies and their orbit around each other.
The minimum distance between a planet and a satellite that holds itself together by its own gravity. If a satellites orbit brings it inside the Roche limit, tidal forces will break the satellite up.
Rolling Plains ...
The smallest distance from a planet or other body at which purely gravitational forces can hold together a satellite or secondary body of the same mean density as the primary; at less than this distance the tidal forces of the primary would break up ...
of dynamical stability: the Kuiper belt (35-50 AU; affected by planetary perturbations), a dynamically inert region (50-2000 AU; not affected by gravity of planets or stars), the inner Oort cloud (2,000-15,000 AU; affected by galactic tidal forces), ...
Io has several active volcanoes and is heated by tidal forces caused by the gravitational pull of Jupiter and the other Galilean moons. This causes Io to glow brightly in the infrared.
Various explanations have been suggested, but all we have are those images from a one-time pass. Perhaps, the way Jupiter's Io is heated by tidal forces, Miranda too was in the past deformed by Ariel and Umbriel, ...
The fresh surface suggests relatively recent volcanism, caused perhaps by tidal forces exerted by Saturn and the moon Dione, with which Enceladus forms a satellite pair (that is, they interact gravitationally).
That such a close orbit has not been made into a circle by tidal forces is consistent with youth. Then some 40 seconds of arc away is a 13th magnitude (12.8) visual companion that seems to be keeping pace with Rho proper.
constituent day The duration of one rotation of the earth on its axis, with respect to an astre fictif, a fictitious star representing one of the periodic elements in the tidal forces. It approximates the length of a lunar or solar day.
 See also: Force, Earth, Orbit, Planet, Sun
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